+A **defect** is an imperfection or [flaw](/wiki/Flaw) that deviates from a desired standard or expected state. It represents an [error](/wiki/Error) or a missing attribute, impacting the function or aesthetic of an item. Such variations are often critical in engineering and manufacturing processes.
+## See also
+- [Error](/wiki/Error)
+- [Failure](/wiki/Failure)
+- [Quality](/wiki/Quality)
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